Hand Tool, Tool Type Double Lever Hand Tool, Compatible Thread Size 1/2 In.-13, 1/4 In.-20, 3/8 In.-16, 5/16 In.-18, Compatible Rivet Nut Material Steel, Mandrel Sizes Included 1/2 In.-13, 1/4 In.-20, 3/8 In.-16, 5/16 In.-18, Material Steel, Overall Length 20 1/2 in, System of Measurement Inch, Compatible Insert Type Rivet Nuts, Includes 1/2 In.-13 Insert, 1/4 In.-20 Insert, 3/8 In.-16 Insert, 5/16 In.-18 Insert, Power Source Manual